Here is a good start on a list from another forum member: http://bestdestinationwedding.com/forum/t23302
Also I felt really overwhelmed just trying to decide the general look and feel of the wedding plus all the details. So I started using my google account to store photos in their picasa web interface. You can create separate albums, add comments/notes for each picture and since it basically is a website you can just send people the link when you want to share. Plus you can see all the photos on one page.
I what I did was create separate albums for each thing; cake, flowers, decor, invites, locations, ideas for photographer, etc. So while I am doing research online and I see a photo I like, I save it to the album and I add notes on color, how to create, website it came from, etc. Then after a couple days I go back and glance over everything. I seem to always come back to the same things so I copy those over to another album I called Final Selections. It had really helped me envision things plus I can then see if everything really goes together. Hope that helps... Carla